var createError = require('http-errors');
var express = require('express');
var path = require('path');
var cookieParser = require('cookie-parser');
var logger = require('morgan');
const bodyParser = require('body-parser');
const jwtAuth = require('./ulities/jwt');

//连接数据库
require('./db.js');

var indexRouter = require('./routes/index');
var usersRouter = require('./routes/users');
var adminsRouter = require('./routes/admins');
var salesmansRouter = require('./routes/salesmans');
var productsRouter = require('./routes/products');
var ordersRouter = require('./routes/orders');
var classifyRouter = require('./routes/classify');
var imagesRouter = require('./routes/images');
var claimsRouter = require('./routes/claims');
var ordersRouter = require('./routes/orders');

var app = express();
// CORS：设置允许跨域中间件 放在var app = express();之后
var allowCrossDomain = function (req, res, next) {
  // 设置允许跨域访问的 URL(* 表示允许任意 URL 访问)
  res.header('Access-Control-Allow-Origin', '*');
  // 设置允许跨域访问的请求头
  res.header(
    'Access-Control-Allow-Headers',
    'X-Requested-With,Origin,Content-Type,Accept,Authorization'
  );
  // 设置允许跨域访问的请求类型
  res.header('Access-Control-Allow-Methods', 'PUT,POST,GET,DELETE,OPTIONS');
  // 设置允许服务器接收 cookie
  res.header('Access-Control-Allow-Credentials', 'true');
  next();
};
app.use(allowCrossDomain);

// view engine setup
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'jade');

app.use(logger('dev'));
app.use(express.json());
app.use(
  express.urlencoded({
    extended: false,
  })
);
app.use(cookieParser());
app.use(express.static(path.join(__dirname, 'public')));

// 进行身份认证
// app.use(jwtAuth);

//配置一级路径
app.use('/', indexRouter);
app.use('/users', usersRouter);
app.use('/admins', adminsRouter);
app.use('/salesmans', salesmansRouter);
app.use('/products', productsRouter);
app.use('/orders', ordersRouter);
app.use('/classify', classifyRouter);
app.use('/images', imagesRouter);
app.use('/claims', claimsRouter);
app.use('/orders', ordersRouter);

// catch 404 and forward to error handler
app.use(function (req, res, next) {
  next(createError(404));
});

// error handler
app.use(function (err, req, res, next) {
  // set locals, only providing error in development
  res.locals.message = err.message;
  res.locals.error = req.app.get('env') === 'development' ? err : {};

  // render the error page
  res.status(err.status || 500);
  res.render('error');
});

// module.exports = app;
app.listen(3000, () => console.info('服务器3000 端口启动成功'));
